As Yamuraiha teaches Aladdin about the properties of Magic, Sinbad presents Alibaba with a sword he received from his late father to replace his broken knife as Amon's metal vessel. Morgiana is also asked to choose an item to be infused with Amon's power to serve as her household vessel, but she decides to have one forged from the same shackles she used during her times of slavery instead. Soon after, a fleet from the Kou Empire arrives bringing the fourth prince Hakuryuu Ren, accompanied by Kogyoku, who accuses Sinbad of defiling her body in her sleep during his visit to the Emperor. By Sinbad's request, Yamuraiha makes use of her magic to prove Sinbad's innocence and it is revealed that it was all a scheme of Koubun Ka's to have him marry the princess by force. When Sinbad and Hakuryuu meet in private, the prince expresses his desire to destroy the Kou Empire, which is now under the influence of Al-Thamen.

The forces of Sindria resist the attack from Al-Thamen's forces, but while Sharrkan and Masrur manage to defeat two of the enemy's main commanders, an ominous huge mass approaches the island, devouring all it touches. Meanwhile at the dungeon, the empowered Dunya prepares a massive attack to wipe out Aladdin and the others while Isaac protects her. Just when Alibaba is about to be killed by Isaac, Hakuryuu stands between them to protect him and has his left hand cut off. Once completing her Extreme Magic, Dunya seemingly obliterates the trio with a rain of countless swords, just to find that she was aiming at a mirage created by Aladdin's magic, far away from their real position. Once exhausted Dunya returns to normal and Isaac starts breaking apart, revealed to be just an inorganic servant of hers. Alibaba tries to reason with Dunya, but she is mortally wounded by Ithnan, claiming that her services are no longer required. Alibaba is then surrounded by a mass of Black Rukn that shows him that she was a princess from the Musta'sim country, which was overthrown by the magicians of Magnostadt, and that Isaac was modeled after Dunya's servant who sacrificed himself to protect her. With the corruption spreading throughout his body, an enraged Alibaba stabs Ithnan with his sword. Ithnan then finally perishes, but not without accomplishing his objective: to have Alibaba fall into depravity and transform himself into a Dark Djinn.